This a small and simple calapult for the office table. All you need is a 170mm by 120mm hdf plate, a small super glue (i used one from "Tiger") and 2 rubber bands. Make shure they are not too big, otherwise do as i did on the picture (use the frontplate for the shooting arm and twist the rubber band around several times).
I hope you will have fun with it.
- M. Ziegler S.